活动大陆边缘

与不同构造环境杂砂岩的稀土元素特征的对比结果及δCe的特征表明南堡凹陷新近系源区属性为活动大陆边缘背景。

In contrast to REE characteristics of graywacks of different tectonic settings and δ Ce values , the tectonic setting of source rocks belongs to the active continental margin .

对于那些具有消减带信号的基性熔岩，可以根据Zr含量和Zr/Y比值，或利用Zr/Y-Zr图解，判断它们是否真正是岛弧或活动大陆边缘玄武岩。

For the basic lavas with subduction-type signatures , we can judge whether they are really island-arc or active continental margin basalts by studying Zr contents and Zr / Y ratios or Zr / Y-Zr diagram .

华力西晚期（270～250Ma）具科迪勒拉I型或ACG特征，属活动大陆边缘构造环境，其形成与早二叠世特提斯洋的向北俯冲作用有关；

The late Variscan granitoids exhibit characteristics of Cordilleran I-type granitoids or ACG , associated with an active continental margin related to the northward subduction of Tethys ocean in the early Permian .

在Rb-Hf-Ta和Rb-Y+Nb构造判别图解上，桃红岩体和西裘岩体都属于火山弧花岗岩（VAG），形成于活动大陆边缘。

On the Rb-Hf-Ta and Rb-Y + Nb discrimination diagrams , they plot exclusively into the volcanic arc granitoid ( VAG ) field , suggesting that they were formed in an active continental margin .

结合麻粒岩的锆石U-Pb测年结果认为，同德麻粒岩的原岩形成于新元古代（844±12Ma）扬子陆块西缘活动大陆边缘的岛弧环境。

Based on the above-mentioned features of geochemistry and U-Pb data , the author considers that the Tongde granulites were formed in the island-arc environment of an active continental margin at Neoproterozoic ( 844 ± 12 Ma ), to the western border of Yangtze block .

环太平洋地区是主要的活动大陆边缘发育地，发育许多与活动大陆边缘有关的盆地。

Many basins related to active margins locate on CircumPacific areas .

两种不同类型的活动大陆边缘及其动力学机制

Active continental margins of two different types and their dynamic mechanism

环太平洋活动大陆边缘盆地类型及油气成藏条件

The basin types and reservoir forming condition of circum-Pacific active margins

古生代活动大陆边缘沉积建造；

The sedimentary formation in the Paleozoic active margin ;

福建及毗邻活动大陆边缘的构造演化特征

Structural Evolution Characteristic of the Continental Margin of Activity in Fujian and its Adjacency

活动大陆边缘的板片窗构造

Slab window in the active continental margin

俯冲板片形貌特征和活动大陆边缘演化体制的关系

Relationship between the morphology of subducted slabs and the tectonic evolution in the active continental margins

黑龙江杂岩在原岩成分上可与活动大陆边缘许多增生的杂岩相当。

The complex is comparable in protolith compositions with many accretionary complexes of active continental margins .

论西太平洋活动大陆边缘中-新生代弧后盆地的分类和演化

On the generation and evolution of Mesozoic Cenozoic back arc basins of Western Pacific active continental margin

黑沟一栾川大断裂，限定了古华北板块南部活动大陆边缘的边界。

The major disruption of Heigou-Luanchuan has determined the active continental margin of the ancient north China plate .

有关中国东部中、新生代活动大陆边缘构造&岩浆作用演化问题沉思录

Ponderation on Problems about evolution of Mesozoic - cenozoic tectono - magmatism of active continental margin in East China

华北地台南缘燕山期花岗斑岩类小岩体形成于大陆板内环境，它具有类似岛弧&活动大陆边缘钙碱系列岩石地球化学特征，其成分在空间上呈现极性特征。

The Yanshanian granite - porphyries along the southern margin of North China Craton were developed in an intraplate environment .

西太平洋中、新生代活动大陆边缘和岛弧构造的形成及演化

On the formation and evolution of the Mesozoic-Cenozoic active continental margin and island arc tectonics of the Western Pacific Ocean

秦岭造山带是世界第二大卡林类卡林型金矿省，其地质背景与美国西部卡林类卡林型金矿省明显不同，位于大陆内部的碰撞造山带，而非活动大陆边缘的盆岭省。

The Western Qinling Mountains is the largest but one metallogenic province of Carlin and Carlin-like gold deposits in the world .

受古太平洋板块俯冲影响的开始时间相同，均为中侏罗世，形成的活动大陆边缘宽度相近；

The beginning time influenced by Pacific plate subduction is the same , the Middle Jurassic , with close width of active continental margin ;

沉积岩的主元素和特征微量元素地球化学研究表明，该矿床形成于活动大陆边缘的局限裂陷海盆环境。

Major and trace element geochemical data show that this deposit was formed in a restricted aulacogen against the setting of an active continental margin .

从岩石化学方面分析得出晚三叠世火山岩属于钙碱性系列，其形成环境为活动大陆边缘，有利于斑岩型铜矿的形成。

The volcanic rocks belong to calci - alkaline in lithology , and ware formed in the continental margin , which is conductive to mineralization of copper .

两广交界处的岑溪二叠纪岛弧型玄武岩是华南地区（狭义）首次报道的、有较为可靠同位素年龄的晚古生代活动大陆边缘型玄武岩。

This paper reported our recent discovery of Permian island arc type basalt at Cenxi , a border district between Guangdong and Guangxi provinces , southern China .

群系有着火山碎屑类复理石层序特征，此层序沉积于活动大陆边缘，在那里沉积酌只会遇到弱岩浆活动。

The formation has the character of a volcaniclastic flyschoid sequence deposited on an active continental margin where the sedimentation was accompanied by only a weak magmatic activity .

马超营一一潘河大断裂，界定了古生代时期华北板块活动大陆边缘陆架与陆缘表海的南部边沿。

The major disruption of Machaoying-Panhe defines the active continental margin of the north China plate and the south margin of the Epicontinental Sea in the Paleozoic period .

该区岩浆主要来源于壳慢混熔和幔源；火山岩基本形成于岛弧和活动大陆边缘环境。

In the area mainly come from the crust and mantle magma mixing and mantle-derived melt ; basic volcanic rocks formed in island arc and active continental margin environment .

它们形成的大地构造背景，可能不是典型的岛弧或安第斯型活动大陆边缘，而是活动大陆边缘靠板内的环境。

Their tectonic background was not both typical island arc and Andean-type active continental margin , and belonged to a setting of active continental margin close to the inner continent .

该地区强过铝质花岗岩形成的大地构造背景是古太平洋板块向亚洲大陆东缘俯冲形成的活动大陆边缘带靠近内陆的一侧。

The tectonic setting of these SPGs is the inboard portion of continental arc that is formed by the subduction of palaeo Pacific plate underneath the eastern margin of Asia .

提出球状辉长岩代表了弧后盆地或活动大陆边缘位置，来自消亡洋壳和上覆楔状地幔岩这两种不同源岩组份的混合物。

The corsite appears generally in back-arc basins or on active continental margins as the mixtures derived from the consumed oceanic crust and overlying wedge-shaped ( mantle ) - derived rocks .

火山岩是一套中-酸性凝灰岩及熔岩，其元素地球化学特征类似于活动大陆边缘或弧火山岩；

The volcanic rocks consist of a suite of intermediate to siliceous tuff and lava , its geochemistry indicates that it is similar to active continental marginal or arc volcanic rocks .